How can PHP beginners improve their understanding of basic string manipulation functions like substr()?

To improve understanding of basic string manipulation functions like substr(), PHP beginners can practice using the function with different parameters and scenarios. They can create small exercises or challenges for themselves to manipulate strings in various ways using substr(). Additionally, reading the official PHP documentation or tutorials on string manipulation functions can provide valuable insights and examples. 

// Example of using substr() function to extract a substring from a string
$string = "Hello, World!";
$substring = substr($string, 7); // Extracts "World!" from the original string starting from index 7
echo $substring;

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PHP string manipulation substr() beginners understanding

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